Lawrence Pumps VPL1700
®
Multistage Vertical Toxic Liquid Pump
Mechanical and Hydraulic Upgrades
Experience In Motion
Pump Supplier to the World
Flowserve is the driving force in the global industrial
pump marketplace. No other pump company in the
world has the depth or breadth of expertise in the
successful application of pre-engineered, engineered,
and special purpose pumps and systems.
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customers to reduce total life cycle costs and improve
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Flowserve offers a wide range of complementary pump
types, from pre-engineered process pumps to highly
engineered and special purpose pumps and systems.
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customer specifications.
Pump designs include:
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ACEC™ Centrifugal Pumps
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VPL1700
Multistage Vertical Toxic Liquid Pump
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Lawrence Pumps VPL1700
Multistage Vertical Toxic
Liquid Pump
VPL1700
The Flowserve VPL1700 pump is a vertical, top tank
entry, bottom suction, toxic liquid pump.
Applications
• Chlorine
• Anhydrous hydrogen cyanide
• Phosgene
• Bromine
• Sulfur trioxide
• Other toxic liquids
Typical Operating Parameters
• Flows to 182 m3/h (800 gpm)
• Heads to 244 m (800 ft)
• Temperatures from -51°C (-60°F) to 52°C (125°F)
Complementary Pump Designs
Flowserve also can provide the following
complementary pumps:
VTP – vertical turbine, wet-pit pump
VPL3200 – cantilever dry-run capable
VPL3300 – cantilever volatile organic compounds
VPL3400 – molten salt transfer
VPL3500 – single-stage vertical lineshaft ISO 13709/API 610
(VS4) compliant
VPL3600 – vertical lineshaft, slurry impeller custom shaft,
ISO 13709/API 610 (VS4) compliant
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VPL1700 Mechanical
and Hydraulic Upgrades
With safety and reliability being of equal importance in the
handling of toxic liquids, Flowserve offers upgrades that
increase environmental and personnel safety during the
production and distribution of toxic liquefied gases.
High-performance, cost-effective upgrades are available for
Lawrence Pumps’ complete line of VPL1700 vertical, top
tank entry, bottom suction pumps. These upgrades increase
operating reliability, reduce maintenance costs, and improve
safety and performance.
Shaft and Sealing System Upgrades
1. Vibration Monitoring — transducers and proximity probes
sense any changes in the mechanical operation.
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1
5
16
3
9
2
10
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2. Temperature Monitoring — thermocouples or RTD’s
for the bearings, mechanical seal, sleeve bearings, lower
seal chamber or packing box send a signal notifying the
operator of an excessive temperature in these areas.
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3. Adjustable Gland Mechanism — permits remote packing
adjustment external to the process environment.
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4. Emergency Seal — located below the lower sealing element,
isolating the storage vessel from the atmosphere should a
packing or mechanical seal failure occur. An additional isolation
seal can be added as part of the bearing frame maintenance kit;
see page 6.
5. Gas Mechanical Seals — to replace packing or older seals
for energy savings, lowest level of buffer gas consumption
and fewer emissions. The seals employ state of the art, noncontacting seal face geometry, for a new level of sealing
reliability over a wide range of operating pressures. Gas
mechanical seals provide the lowest fugitive emissions without
complex piping, instrumentation or regulation.
Material and Arrangement Upgrades
6. Overall Pump Length Changes and Additional Stages — for
increased head output to accommodate system changes and/or
for alternate tank use.
7. High Alloy Wet Ends — for corrosion and/or erosion
prevention, low temperature and resistance to sparking.
8. Ceramic/Intermetallic Wear Components —
for applications requiring high heat dissipation or
wear resistance due to lack of lubrication or solids
being present.
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9. ASME Code Stamped Mounting Plate — available
for pressure and toxic services.
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11
18
17
13
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Hydraulic Upgrades
Reliability and Maintenance Upgrades
10.Excess Flow Check Valve — stops the flow of toxic
fluids should a line rupture occur outside the tank. A
double-acting check valve can also be added for both
excess and minimum flows. Check valves are also sold
separately for systems handling dangerous toxic fluids.
14.Cartridge Thrust Bearing — mounted on a sleeve
to facilitate removal of seals and thrust bearings
during rebuilds. Heavy-duty, anti-friction bearings
operating in a well-protected bearing housing,
providing an L10 life in excess of 25 000 hours.
11.Surge Chamber — absorbs the high-pressure shock
wave (water-hammer) that occurs with the sudden
closure of the check valve or system control valves.
Surge chamber is designed for easy clean out.
15.Dry Disc Spacer Coupling — goes with the
cartridge thrust bearing to facilitate bearing and
seal removal. Spacer couplings are maintenance
free, have low axial and bending stiffness,
reducing the load on the pump and motor
bearings.
12.Inducer — reduces the pump’s required submergence
(NPSHA) by 35% to 50%, thus minimizing tank inventory
levels.
16.Compact Style Bearing Frame — for use with
new mechanical gas seals.
13.Higher Flow and Head Wet Ends — that fit through the
same tank nozzle are available for capacities of up to
136 m3/h (600 gpm) and heads up to 274 m (900 ft) on
chlorine, 427 m (1400 ft) on water. New hydraulics can
be developed to meet special operating conditions.
17.Diffuser Style Casings — balance the radial
thrust around the circumference of the impeller.
The radial load carried by the sleeve bearings is
minimized. Confined, controlled compression
gasketing for more positive sealing of stages.
18.Wear Rings — replaceable casing and impeller
wear rings optimize efficiency and extend the life
of critical components.
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19.Enclosed Impellers — with sealing rings, allow
variations in impeller clearances without affecting
the overall hydraulic performance. Optional nonmetallic and ceramic coated alloys are available
for wear surfaces.
Typical Bearing
Frame Assembly
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2
5
Easy Clean-Out Design
Surge Chamber
4
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This surge chamber design
unbolts at both the top
and bottom, allowing easy
access for cleaning.
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Excess Flow Check Valve
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Multiple
Maintenance
Upgrade
Options
Available
Lifting mechanism engaged in upper position
Lifting mechanism in lowered position
VPL1700 Bearing Frame
Maintenance Kit
The VPL1700 upgrade kit allows access to the upper gas
mechanical seal or upper packing and thrust bearing cartridge
without decommissioning the tank to remove the pump for
maintenance. A Flowserve representative will individually
assess existing in-service pumps for this upgrade. This
feature is also available on new pumps.
The kit consists of:
20. Isolation Seal — this seal can be activated in series with
the lower emergency seal to provide true redundancy.
21. Specialized Sleeve With Lifting Mechanism — with the
isolation seal engaged, the specialized sleeve is lifted into
place, engaging an O-ring. This O-ring, in combination
with a series of additional O-rings, creates a static
seal that isolates the area above it from the process;
maintenance can now be performed safely. A sleevelifting mechanism is utilized to operate this device.
Pressure Monitored
The area under the sealing sleeve assembly can be safely
purged to evacuate any trapped toxic gas and then
re-pressurized with nitrogen. Monitoring this pressure
to ensure it is maintained verifies the isolation seal is
operating properly.
Ease of Operation
With the pump stopped, the lower and upper emergency
seals are activated. A lifting mechanism is then installed
and the specialized sleeve is lifted into place easily by
turning a pair of nuts. These nuts force the lifting
mechanism to raise and lock in place at the upper stop,
shown in the images above. This sleeve is then lowered
and the lifting mechanism removed from the shaft when
returning the pump to operation.
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20
Isolation Seal and Sealing Sleeve in
Deflated Position
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Isolation Seal and Sealing Sleeve in
Inflated Position
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Global Service
and Technical
Support
Life Cycle Cost Solutions
Typically, 90% of the total life cycle cost (LCC) of a
pumping system is accumulated after the equipment
is purchased and installed. Flowserve has developed
a comprehensive suite of solutions aimed at providing
customers with unprecedented value and cost savings
throughout the life span of the pumping system.
These solutions account for every facet of life cycle
cost, including:
Capital Expenses
• Initial purchase
• Installation
Typical Pump Life Cycle Costs 1
17%
44%
Operating Expenses
• Energy consumption
• Maintenance
• Production losses
• Environmental
• Inventory
• Operating
• Removal
12%
9%
16%
2%
Energy
Maintenance and Repair
Innovative Life Cycle Cost Solutions
Loss of Production
• New Pump Selection
• Turnkey Engineering and Field Service
• Energy Management
• Pump Availability
• Proactive Maintenance
• Inventory Management
Purchase and Installation
Operational
Decontamination and Removal
1 While
exact values may differ, these percentages are consistent with
those published by leading pump manufacturers and end users, as
well as industry associations and government agencies worldwide.
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USA and Canada
Flowserve Corporation
5215 North O’Connor Blvd.
Suite 2300
Irving, Texas 75039-5421 USA
Telephone: +1 937 890 5839
Europe, Middle East, Africa
Flowserve Corporation
Parallelweg 13
4878 AH Etten-Leur
The Netherlands
Telephone: +31 76 502 8100
Latin America
Flowserve Corporation
Martín Rodriguez 4460
B1644CGN-Victoria-San Fernando
Buenos Aires, Argentina
Telephone: +54 11 4006 8700
Telefax: +54 11 4714 1610
Asia Pacific
Flowserve Pte. Ltd.
10 Tuas Loop
Singapore 637345
Telephone: +65 6771 0600
Telefax: +65 6862 2329
Bulletin PS-100-11c (E) February 2015. © 2015 Flowserve Corporation
To find your local Flowserve representative:
For more information about Flowserve Corporation,
visit www.flowserve.com or call +1 937 890 5839.
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